tHE PROBLEM OF LYKCHEtS. 



75 



33 clean pv/riZ. 



3 "i ' J-loM-d hfluU chalk . 



JlcM'Wa.yi. 



to the crumbling of a wall or other vertical structure, its age 

 must be assumed to correspond with its flatness. 



15. On the way to Melplash, Warren Hill meets the eyes of 

 the traveller, and displays a number of conspicuous lynchets 

 covered with grass and a little gorse. On a close inspection, 

 one finds that the terraces are not as flat as from a distance they 

 appear to be. The top of the hill is composed of Inferior Oolite, 

 which has been largely quarried, and which rests upon IMidford 

 Sands, whereon lie the lynchets. Of these, which are three in 

 number, one above the other, the highest was chosen for section. 

 They are all shown by Diagram F. 



